ringing sound and no note - original DM48 - lowest two holes

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Douglas Tanner

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Mar 16, 2026, 10:53:43 AM (3 days ago) Mar 16
to DM48 Digital Chromatic Harmonica User Forum
I was playing my original DM48 for silent practice last nite and this morning the lowest two or three holes make a ringing sound and no note when I blow in.  The draw works better.   Water problem, maybe?  Can anyone offer a definitive answer to this problem?  There isn't a troubleshooting section in the manual.

doug tanner


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Douglas Tanner

Douglas Tanner

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Mar 16, 2026, 11:46:50 AM (3 days ago) Mar 16
to DM48 Digital Chromatic Harmonica User Forum
A correction:  it's in orchestra tuning and none of the C notes in the second and third holes work.  There's a draw (slide in) C and a blow C in the second hole and a blow C in the third hole.  None of these work - just ringing sound, but all of the notes around them work.   Weird.  I've had this for a few years and this has never happened before??  doug tanner, Wendell, MA
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Douglas Tanner

Douglas Tanner

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Mar 16, 2026, 11:59:38 AM (3 days ago) Mar 16
to DM48 Digital Chromatic Harmonica User Forum
AND, the c# blow in the second and third hole doesn't work either.  HOwever, if I tranpose up one octave, they all work (in the higher octave, but same holes).  Something wrong with the specific note sensors?

dt
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Douglas Tanner

Erik L

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Mar 16, 2026, 12:25:41 PM (3 days ago) Mar 16
to DM48 Digital Chromatic Harmonica User Forum
Dear Doug,

Can you give some more details regarding your setup? If the same holes work fine when transposing up, it cannot really be a sensor issue. Do you have the same problem regardless of what synth/app you are using? 

Erik

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Douglas Tanner

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Mar 16, 2026, 1:22:56 PM (3 days ago) Mar 16
to Erik L, DM48 Digital Chromatic Harmonica User Forum
I use an app called "heavy Brass"  I have no other.  I've used it for years and it was working fine until I'd been playing for a couple of hours.  

Doug



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Douglas Tanner
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